APA (7th ed.) Citation

Collins, R., Flather, M., & Peto, R. (1990). GISSI-2: 10% reduction in mortality with heparin in acute myocardial infarction?

Chicago Style (17th ed.) Citation

Collins, R., M. Flather, and R. Peto. GISSI-2: 10% Reduction in Mortality with Heparin in Acute Myocardial Infarction? 1990.

MLA (9th ed.) Citation

Collins, R., et al. GISSI-2: 10% Reduction in Mortality with Heparin in Acute Myocardial Infarction? 1990.